Podcast:EconTalk Published On: Mon Aug 27 2018 Description: Psychologist Charlan Nemeth of the University of California, Berkeley and author of In Defense of Troublemakers talks with EconTalk host Russ Roberts about the ideas in the book--the power of groupthink, the power of conviction, and the opportunity for an authentic, persistent dissenter to have an impact on a group's decision. The conversation concludes with a discussion of the challenges of doing careful research in modern times.